Adjustable screen



Aug. 28, 1923.

H. P. RAVN ADJUSTABLE SCREEN Filed Dec. 9, 1921 I72 van tor,

Hans Pete/7" .Rav

I Atofne-y.

Patented 28, 1923.

STATE ii i i t T Hens rizrna Bevin or 'warnnnoo, Iowa.

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Application filed December 9,1921. Serial 1%. 521,1e9.

which the following is a specification.

My invention relates to improvements in adjustable screens, particularly to window screens, and the object of my improvements is to supply a light, portable adjustablyextensible and inexpensive screen, having means for releasably securing it to window jambs or the like.

This object have accomplished by the means which are hereinafter described and claimed, and which are illustrated in the accompanying drawings, in which Fig. 1 is front elevation of the wire frame work of my screen, having its parts extended adjustably to traverse a window opening, with its opposite ends releasably secured to bearing strips of the jambsfthe flexible screen fabric not being shown. Fig- 2 is a front elevationof said frame work-- having its parts relatively-adjusted to be of less length,-and showing a flexible screen fabric covering it and removably secured thereto. Fig. 3 is an elevation of one of the U-shaped frame members, Fig. 4 is an elevation of one of the removable slidably ad justable carrying rods for an end of the screen fabric, and Fig. 5 is an elevation of one of the resilient wire rods used as releasable fastening-means, for an end of the frame. Fig. 6 is a longitudinal horizontal section of the complete device as shown in said Fig. 2. Fig. 7 is a vertical section of the frame only of said device as mounted releasably between the side strips of a window jamb.

Similar numerals of reference denote cor-.

responding parts throughout the several views.

The frame of my improved screen is composed of but six wire parts, and these parts consist of three sets or pairs of differently shaped wire elements which are shown in Figs. 3 to 5 inclusive. The open frame proper is composed of a pair of like but reversed U-shaped wire rods bent rectangularly in places to supply in each instance a vertical medial part 1 and two horizontal, longitudinal and parallel arms or parts 2 and 3, each of said parts having a terminal hook or eye 4. I

As shown in Fig. 1,"said frame elements are positioned with parts of their arms along side each other and connected slidably 'adjustably by means of said hooks and y 4 interlockingly.

Each bent rod shown in Fig. lcomprises a vertical straight part5 and a horizontal part 8 extending at a right angle therefrom, the connecting bend therebetween being a loop 6, the outer or free ends of said parts 5 and 8 terminating in hooks 7 and 9 respectively. Each part 5 is positioned across frame arms 2 and 3, the hook"? being seated over one arm, the hook 9 being seated upon the-other arm, and the last mentioned arm passed through said loop 6, whereby this rod 5 may be adjusted longitudinally along said I members 2 and 3. I j w The end fastening means consist of ashort springy wirerodlOhaving'one end formed terminally into an eye 11' and hook 12; the

eye being traversed by one of the other frame parts 2 or 3 as the case may be. near its angle to position the rod part 10 adjacent the'frame part1. As indicated in Figs. 1 and 7 when the frame has been-'adjustably' extended across a'window" opening to seat the parts'l close to the j ambsi16 between the- .strips 18 and under the raised sash 17'.-the

rod parts 10 can be sprung towards-the part 7 1 and then released to engage the adjacent strip 18 to .releasably hold/that end of the screen frame work in place, with the hook 12 engaged with the part 1 A flexible screen 13, which may be made of light porous cloth or wire netting is positioned to cover one side of the open frame work, and has its ends? carried about the 2 vertical end part 1 thereof to li parallel to and closely abutting the opposite face of the frame work, and the ends of this screen are hemmed to provide transverse tubes 15 to receive the rod part 5 previous to the latter being mounted on said frame work. When the adjustable devices shown in Fig. 4 are so connected to the screen end and then mounted slidably on the respective frame members 2 and 3, these devices may be slidingly adjusted along the framework to properly tensionally holdthe screen thereon.

The particular function of the angularlydirected part 8 of the bent rod 5 is to lie 7 along the abutting frame-element and be being slidably adjustable 110. engaged therewith interlockingly although therealong. longt I v V 9 tends to keep the part of the rod in posi;

tion across the frame-elements to 1 the iat-ter taut and smooth, but also inter-- support the ends of-the screen 13 and keep looks with the abutting frame-element frictionally to resist ordinary forces tending to displace it. Thisdevice therefore will keep the screen positioned and taut in-any adj ust- 'nientof the frame-elements each other.

relatively to It isto beunderstoodthat various modifications may be made in my said device, Without causing it to depart from the invention-,- or from the scope of its protection.

Having described my invention, what I claim as newand desire to secure by Letters Patent, is:

-1.-Tn 'adevice of the character described,

like U-shaped rods Whose terminal members are interlockingly connected for relative.

longitudinal adjustments, and'bent screenholding rods having medial and terminal loops slidably mounted on said terminal members for relative longitudinal adjust-1 n nt "2. A device of the-character described,

com-prising like-U-shaped rods Whose terminal members are reversely positioned and interlockingly connected for relative longitudinal adjustments, screen-holding rods positioned across said terminal members,

and connected thereto for relative longi- 'tudina'l adjustme ntsyand a flexible screen positioned to cover one side of said U-shaped members and having its ends carried about the medial parts of said rods and connected removably to said' screen-holding 7 rods. 3. Ina. device of thecharacter properly shaped rods for releasably across said terminalmembers and connected, thereto mterlo'ckingly for relative longitudr! nal ad ustments, aflexible screen posrtloned described,- like U-shaped'rods WllOSG terminal mem bers are interlockingly connected for rela tive longitudinal adjustments, screen-hold rlng elements mountedf @interloclnngly on said terminal members for relative longi- 40 v tudinal adjustments, and resilient clamping- V rods interlockingly connected to said U- securing same to end-supporting structures; 4. A device of the character described, comprising like U-shapedrods vvhose 'ter-' minal members are reversely'positioned and connected 'for relative'longitudinal adjust ments, screen-holding rods positioned to cover one side of said U-shaped members and having its ends carriedaboutthe medial parts of said rods and connected removably' to said screen-holding rods, and resilient clamping rods' 'interlockingly connected to-sai'd U-shaped'rods for releasably securing same to end-supporting structures.

5. In combination, a' screen frame com i posed of reversed -U-shaped elements assembled and connectedinterlockingly slidingly together for relative longitudinal adjust merits, and screen-carrying rods positioned interlockingly across said frame adj acent its opposite endsand having pa'rts directeda'ngularly along the abutting frame-elements, said rods and their said singularly-directed parts having receiving ends for the frame elements sli'dable therealong longitudinally, and said 'angularlydirected parts being elastically interlocked WllJh'thG frame-elements. T

Signed at Waterlo0,-'I0Wa, this 19th day of-Nov.,1921.' l 

